获得岩石圈不同深度高精度体波速度与各向异性结构，是研究首都圈及周边地区岩石圈壳幔耦合特征的要求。地震数据的数量和质量是制约层析成像分辨能力和反演精度的关键因素。本项目计划基于固定地震台网、华北地震科学探测台阵以及中国科学院地震流动台阵记录的地震数据，利用模板识别匹配定位技术充分拾取微小地震记录，利用双差层析定位技术提高研究区域地震定位精度。使用数量和质量均极大提高的地震走时数据，利用新发展的优势震相速度与各向异性联合反演方法，获得首都圈及周边地区岩石圈不同深度高精度体波速度与各向异性结构。本项目将为研究该地区岩石圈深部构造、壳幔耦合特征及地震分布规律提供新的地震学依据。

Obtaining the high accuracy seismic body wave velocity and anisotropy structure of different depths of the lithosphere is a requirement for studying crust-mantle coupling characteristics of the capital and surrounding region. The quantity and quality of seismic data are the key factors restricting the resolution and accuracy of tomography study. This project plan to use the seismic data recorded by high dense stationary stations and temporary stations of the North China Seismic Array and North China Interior Structure Project, and apply the match and locate method to detect more small events and the double-difference tomography method to improve the seismic location accuracy. The new seismic data which improved both quantitatively and qualitatively are then used to obtain the high resolution and high accuracy seismic velocity and anisotropy structure of the capital and its surrounding region by employing the developed seismic velocity and anisotropy joint inversion method. This project will provide new seismic constraints for the study of lithosphere structure, crust-mantle coupling characteristics, and earthquake distribution.